Neurological Evaluation Of The Lumbar Nerve Roots - Everything You Need To Know - Dr. Nabil Ebraheim
nabil ebraheim・2 minutes read
Herniated disks at different locations impact specific nerve roots, causing unique sensory changes and motor reflexes, such as herniation between T12 and L1 affecting the L1 nerve root. Tests like the straight leg raise can help diagnose nerve root involvement, with herniation at L5 and S1 leading to sensory changes in the foot and specific motor reflexes like ankle dorsiflexion.
Insights
- Herniated disks affecting different locations lead to specific sensory changes and motor reflexes determined by the corresponding nerve roots, such as L1, L3, L5, and S1, showcasing the importance of assessing sensory, motor, and reflex changes to diagnose nerve root involvement accurately.
- The straight leg raise test is a crucial diagnostic tool to identify nerve root involvement in herniated disks, with distinct herniation locations impacting different nerve roots like L5 and S1, resulting in unique sensory changes and motor reflexes, emphasizing the significance of tailored assessments for accurate diagnosis.
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Recent questions
How are nerve root involvements due to herniated disks assessed?
Through sensory, motor, and reflex changes in lumbar nerves.
What specific sensory changes occur with herniation between T12 and L1?
Sensory changes and motor reflexes in the L1 nerve root.
Which nerve roots are affected by herniation between L2 and L3?
L3 nerve root, impacting thigh and knee areas.
What diagnostic test helps identify nerve root involvement?
The straight leg raise test is used for diagnosis.
What sensory changes result from herniation affecting L5 and S1?
Sensory changes in the foot and specific motor reflexes.
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